One problem related to other fuel system hoses lines/piping, and fittings has been reported for the 2004 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Toyota Sienna based on all problems reported for the 2004 Sienna.
While driving and coming to complete stop vehicle stalled, vehicle was taken to the dealer, and mechanic determined that gas line was disconnected from the gas tank.
| Other Fuel System problems | |
| Other Fuel System Tank Assembly problems | |
| Other Fuel System Tank Mounting problems | |
| Other Fuel System Hoses Lines/piping, And Fittings problems |